National Stock Number
2815-01-539-3933
National Stock Number (NSN) 2815-01-539-3933, or NIIN 015393933, (rotor,engine poppet valve) was assigned April 20, 2006 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There is only one manufacturer part number associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of Feb 24, 2020. There have been 3 contracts issued for this part number, with 15 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 2 different suppliers. The last contract numbers awarded were: SPE7M120FA5LJ, SPE7M120FA5LJ, SPM7LX10D9005, SPM7LX10D9005, SPM7LX10D9005. The total value of the awarded contracts has been US$ 1,565.57.
This NSN is fairly common among different weapons systems, belonging to 20 different platforms.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Sep 02, 2009, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. The data needed to produce this item from additional sources is not physically available. Valid AMCs: 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 22200. [A SPRING LOADED METALLIC DEVICE WHICH IS SPECIFICALLY DESIGNED TO ROTATE THE POPPET VALVES OF AN INTERNAL COMBUSTION ENGINE TO PREVENT UNEVEN WEAR AND/OR DISTORTION OF THE VALVE SEATING SURFACE. SEE ALSO SEAT, HELICAL COMPRESSION SPRING.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 2815015393933 does not contain precious metals.
This NSN is associated to Schedule B 8409998000: parts for compression-ignition internal combustion piston engines (diesel), nesoi. The Schedule B End Use is listed as industrial engines. NAICS classification category 333618: other engine equipment manufacturing.
This information was last updated on Jul 01, 2025.